Building block from a toy building set



FIG. 1 is a top plan view of my ornamental design for a building blockfrom a toy building set;

FIG. 2 is a bottom view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a rear side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a front side view thereof; and,

FIG. 7 is a top, front perspective view thereof.

The broken lines in each of the figures are for environmental purposesonly and form no part of the claimed design.

CLAIM The ornamental design for a building block from a toy buildingset, as shown and described.